NSI-189 is a synthetic investigational compound developed by Neuralstem Inc., known for its unique potential in stimulating hippocampal neurogenesis—the formation of new neurons in the brain’s hippocampus. While not approved for human use, it has garnered significant attention in preclinical and early-phase clinical research for its possible antidepressant, neuroprotective, and cognitive-enhancing effects. Researchers often explore NSI-189 in studies targeting mood regulation, neurodegenerative conditions, and brain injury recovery.

• Neurogenic Agent: NSI-189 stimulates neurogenesis in the hippocampus, which is linked to memory formation and emotional regulation in both animal and cellular models.

• Antidepressant Research: In early human trials and animal models, NSI-189 showed potential antidepressant effects that may persist after treatment cessation—indicating long-lasting biological changes.

• Cognitive Function Exploration: Studies have investigated its role in improving working memory, processing speed, and executive function through hippocampal enhancement.

• Stroke and TBI Studies: Researchers are exploring its ability to aid in recovery from ischemic stroke and traumatic brain injury by promoting brain plasticity and regeneration.

• Mood and Neuroplasticity: NSI-189 may increase levels of brain-derived neurotrophic factor (BDNF), a protein involved in neuronal survival, growth, and synaptic modulation.

• Investigational Status: Despite promising findings, NSI-189 remains a research chemical and is not FDA-approved for any therapeutic applications.

NSI-189 is legal to purchase and possess in many countries when used strictly for research purposes. It is not scheduled or classified under most controlled substances lists, which means it can be distributed to qualified researchers without requiring a special license, provided it is not used for human consumption.

• Unscheduled Compound: NSI-189 is not listed under the United States Controlled Substances Act and remains legal for research.

• Research-Only Classification: It is sold under strict agreements prohibiting use outside of chemical or laboratory study. Usage in humans is prohibited.

• Varying Local Laws: While generally legal, laws differ globally—some jurisdictions may impose restrictions on import or possession. Always verify local regulatory status.

• RC Plug Compliance: We ensure that all NSI-189 shipments comply with international export guidelines and do not knowingly ship to restricted regions.

• No Prescription Needed: NSI-189 does not require a prescription to order from RC Plug, as we cater exclusively to research clientele.

Proper storage conditions for NSI-189 are critical for maintaining its structural stability and effectiveness during the research timeline. Environmental factors like heat, humidity, and light can degrade the compound, especially in long-term storage.

• Temperature Control: Store NSI-189 in a cool environment, ideally between 2°C and 25°C. Refrigeration is not always necessary but may be used for extended storage.

• Humidity Avoidance: Exposure to moisture can degrade chemical stability. Always store in a dry space, using desiccants if possible.

• Light Protection: Prolonged light exposure, especially UV light, can compromise molecular integrity. Use opaque or UV-blocking containers.

• Sealed Containers: Keep NSI-189 in tightly sealed containers to prevent oxidation and contamination. Avoid repeated exposure to air.

• Form-Dependent Storage: Powder form may be more sensitive to environmental changes than encapsulated formats, requiring extra precaution.

• Shelf Life: When stored correctly, NSI-189 maintains potency for up to 24 months. Always label storage containers with date of acquisition.

NSI-189 is offered in various forms to accommodate different types of experimental setups, from in vitro cellular studies to in vivo preclinical testing. The physical format can influence handling protocols and dosage measurements.

• Powdered Form: The most common format, ideal for precise dosing in chemical assays and cell culture experiments. Easily dissolvable in DMSO, ethanol, or saline.

• Encapsulated Form: Pre-measured capsules offer standardized dosing, often used in animal studies or for storage convenience. Reduces handling errors and contamination.

• Custom Quantities: RC Plug supports custom orders ranging from milligrams to multi-gram batches to suit both small-scale and institutional research needs.

• Research-Only Labeling: All forms are labeled explicitly for research purposes, complying with international standards for investigational compounds.

• Batch COA Availability: Regardless of format, each batch is HPLC-tested and comes with a certificate of analysis to verify purity and consistency.

Although the precise mechanism of NSI-189 is still under investigation, current evidence suggests that it influences neurogenesis and neuroplasticity by acting on hippocampal stem cells and modulating certain neurotrophic pathways. It is distinct from conventional antidepressants in both effect profile and biochemical interaction.

• Hippocampal Stem Cell Proliferation: NSI-189 encourages the generation of new neurons, particularly within the dentate gyrus of the hippocampus—a brain region critical for memory and mood regulation.

• BDNF Upregulation: Studies show that NSI-189 increases expression of brain-derived neurotrophic factor (BDNF), which supports neuronal survival and synaptic plasticity.

• Non-Monoaminergic Profile: Unlike SSRIs or MAOIs, NSI-189 does not significantly alter serotonin, norepinephrine, or dopamine levels directly, reducing potential for typical side effects.

• Anti-Inflammatory Properties: Emerging research indicates potential reductions in pro-inflammatory markers within the CNS, though mechanisms remain unclear.

• Neuroprotection and Recovery: In ischemic and trauma models, NSI-189 appears to aid recovery by restoring neural circuitry and reversing atrophy.

• Long-Term Neural Modulation: Observed effects often persist beyond administration periods, suggesting durable changes in brain structure and function.

Researchers are drawn to NSI-189 due to its unique neurogenic profile, which sets it apart from traditional nootropics and antidepressants. The compound is being studied for both its short-term effects on behavior and mood, and its long-term potential for structural changes in the brain.

• Neurogenesis and Brain Repair: NSI-189 stimulates the growth of new neurons in the hippocampus, offering a research foundation for recovery models in neurodegeneration, stroke, and traumatic brain injury.

• Antidepressant-like Properties: Early studies suggest NSI-189 may alleviate depressive symptoms through mechanisms unrelated to monoamine pathways, possibly offering alternatives to current antidepressants.

• Cognitive Enhancement: There’s evidence that NSI-189 may improve memory retention, executive function, and learning capacity, especially in aging and impaired brain models.

• Neuroplasticity Restoration: It has been shown to enhance synaptic plasticity, a process critical for adaptation, recovery, and brain flexibility in learning tasks.

• Post-Stroke Recovery: Research has indicated improvements in motor and cognitive function in animal models after stroke, with hippocampal regeneration contributing to the recovery process.

• Anti-Aging and Memory Loss: NSI-189 is also being explored for its protective effects against age-related hippocampal atrophy, with possible applications in Alzheimer’s and mild cognitive impairment models.

NSI-189 is not approved for human consumption and is intended strictly for research use. While some early clinical trials have tested it in humans under controlled settings, it remains an investigational chemical not cleared for therapeutic or dietary applications.

• Not FDA-Approved: NSI-189 has not been granted approval by any major regulatory agency, including the FDA or EMA, for medical use in humans.

• Unknown Long-Term Safety: Clinical trials have provided limited data on long-term use; side effects, tolerability, and interactions are not fully characterized.

• Limited Human Trials: Only a small number of Phase I and II trials have been conducted, with varying dosages and methodologies. Results should not be generalized.

• Research-Only Usage: As a research chemical, NSI-189 is explicitly labeled for laboratory testing, chemical assay, and non-human studies only.

• Potential Adverse Effects: Reported adverse reactions in trials include headache, dizziness, fatigue, and occasional mood instability—though detailed pharmacovigilance is lacking.

• Legal Risk of Human Use: Using NSI-189 outside research settings could violate drug laws or institutional ethics policies depending on the region.

Combining NSI-189 with other research chemicals is an area of growing interest, particularly in studies targeting synergistic cognitive or neuroprotective effects. However, data on interactions remain preliminary, and researchers must take rigorous precautions.

• Combination with Nootropics: Some studies have explored co-administration with noopept, racetams, or choline supplements to observe compounded cognitive effects, though mechanisms remain unverified.

• Neurotrophic Synergies: NSI-189 may interact positively with compounds that also promote BDNF or neurogenesis, but dosage calibration is crucial to avoid overstimulation.

• Unknown Pharmacokinetics: Since NSI-189 has a novel structure, its metabolic interactions with other agents are not fully understood. Mixed compound studies should begin with isolated testing.

• Sequential vs. Concurrent Use: Some protocols involve sequential administration to isolate timeline-based effects, allowing better tracking of neurological changes.

• Risk of Unanticipated Outcomes: In vivo and in vitro systems may respond unpredictably to compound stacks, potentially leading to data distortion or false positives.

• Documentation is Critical: When combining NSI-189 with other agents, thorough note-keeping and experiment replication are essential to confirm observed outcomes.

There is no standardized dosage for NSI-189 due to its status as a research chemical, but reference data from preclinical and limited clinical trials offer guidance for academic and laboratory use. Dosage must be calibrated precisely based on the experimental model and objective.

• Animal Studies: Typical rodent studies have administered NSI-189 at 10–40 mg/kg per day, adjusted based on weight and study duration.

• Cell Culture Use: In vitro applications often involve nanomolar to micromolar concentrations, requiring precise dilution from stock solutions.

• Human Trial Reference (For Context Only): Some Phase I trials in humans tested doses ranging from 20 to 80 mg/day. These are not recommendations but are cited for data modeling only.

• Start Low, Go Slow: When beginning a new research protocol, it is best practice to begin at the lowest observed effective dose and increase incrementally while observing effects.

• Administration Method: NSI-189 can be administered orally or via injection depending on the protocol, with bioavailability potentially varying by method.

• Batch-to-Batch Consistency: Ensure consistency by sourcing from a supplier with third-party testing and using identical dosages across parallel study arms.

NSI-189 is most applicable in neuroscience research focusing on mood disorders, neurodegenerative diseases, and cognitive decline. Its multifaceted action on brain structure and mood pathways makes it a valuable candidate in experimental models that investigate brain restoration and function enhancement.

• Depression and Mood Disorders: NSI-189 is being studied in models of treatment-resistant depression due to its hippocampal effects and non-serotonergic mechanism.

• Neurodegenerative Disease Research: Promising for use in Alzheimer’s, Parkinson’s, and other cognitive decline studies, where hippocampal atrophy and synaptic failure are central.

• Traumatic Brain Injury and Stroke: Useful in models of neural regeneration, examining post-injury plasticity and behavior recovery timelines.

• Cognitive and Memory Function: Explored for learning enhancement, short- and long-term memory improvements, and executive function restoration.

• Anti-Aging and Longevity Studies: Its role in reversing age-related brain shrinkage makes NSI-189 valuable for geriatric research and life-extension modeling.

• Stress and PTSD Models: Potential applications include testing NSI-189 in stress-exposed animals to measure resilience, memory retention, and BDNF activity recovery.

NSI-189 stands out from typical nootropic compounds due to its long-term structural effects on the brain, particularly in the hippocampus, rather than immediate performance enhancement. Unlike fast-acting stimulants or cognition boosters, NSI-189 focuses on brain regeneration and neurogenesis, offering a completely different research profile.

• Neurogenic vs. Stimulant Action: Most nootropics, such as modafinil or phenylpiracetam, work by stimulating neurotransmitter systems for acute boosts. NSI-189, however, induces neurogenesis—affecting actual brain structure over time.

• Long-Term Effects: Unlike racetams or ampakines, NSI-189 may offer lasting changes in hippocampal volume and neuron density, which could have durable behavioral effects in animal studies.

• Mood Enhancement Role: NSI-189 has demonstrated potential antidepressant-like properties not commonly seen in classic nootropics, which are usually limited to cognition and alertness.

• No Known Tolerance Development: Some stimulant-based nootropics exhibit tolerance with prolonged use, but NSI-189’s neurogenic mechanism may reduce the risk of habituation in long-term study designs.

• Distinct Mechanism: Rather than acting on acetylcholine or dopamine pathways like many cognitive enhancers, NSI-189 modulates BDNF and neurotrophic signaling.

• Non-Acute Cognitive Impact: It may not immediately enhance memory recall or processing speed but can produce subtle and progressive improvements through increased neural network integrity.

• Lower Abuse Risk: Due to the absence of euphoric or stimulant effects, NSI-189 may have a lower abuse potential in laboratory environments.

At RC Plug, we maintain rigorous quality standards to ensure that every batch of NSI-189 delivered is of the highest possible purity. This consistency is critical for generating reliable, reproducible results in scientific research.

• ≥98% Purity Guaranteed: All NSI-189 batches undergo high-performance liquid chromatography (HPLC) testing, and we guarantee a minimum purity of 98% or higher.

• Third-Party Lab Testing: Our testing is verified by independent analytical laboratories to eliminate conflicts of interest and confirm chemical integrity.

• Certificate of Analysis (COA): Each shipment includes or can be requested with a COA that details purity level, batch number, production date, and testing methodology.

• No Additives or Fillers: Our NSI-189 is free of excipients, dyes, binders, or unknown substances, ensuring that only the pure compound is delivered for research.

• Batch Tracking: All products are tracked by lot and serial number to ensure traceability and consistency across reorders.

• Storage and Handling Standards: From production to shipment, NSI-189 is kept under strict temperature and humidity controls to preserve its chemical integrity.

When you place an order for NSI-189 at RC Plug, you receive more than just the research compound—you receive a complete, secure, and transparent fulfillment package designed to meet the needs of scientific investigators.

• NSI-189 in Chosen Format: Whether you select powder or capsules, your product is measured and packed precisely according to your order details.

• Tamper-Proof, Discreet Packaging: We package all items in plain, vacuum-sealed bags or pharmaceutical-grade vials, depending on the format, and ensure that the exterior gives no clue to the package contents.

• Tracking Number: Every order includes a trackable shipment ID provided within 24 hours of dispatch so you can monitor delivery progress in real time.

• Certificate of Analysis (Optional): Upon request, we can include a COA specific to your NSI-189 batch. This is ideal for documentation or institutional archiving.

• Customer Support Access: Our team is available for assistance before and after your order—whether you need help choosing a form, understanding batch data, or resolving delivery issues.

• Security-Sealed Labeling: All containers are labeled clearly as “For Research Use Only,” with details including lot number, purity, and expiration date.

The stability of NSI-189 is crucial for consistent research results. Under ideal storage conditions, NSI-189 maintains its chemical integrity and potency for extended periods, making it suitable for both short-term experiments and long-term study programs.

• Shelf Life of Up to 24 Months: Properly stored NSI-189 remains chemically stable for at least two years from the date of manufacture.

• Requires Dry, Cool Storage: Ideal storage is in a dry, dark location at room temperature (15–25°C), away from direct sunlight and humidity.

• Container Type Matters: We recommend storage in airtight, light-resistant containers. Vacuum sealing is preferred for long-term preservation.

• Avoiding Repeated Exposure: Repeated opening and resealing can introduce moisture and air, potentially degrading the compound. Use smaller aliquots to reduce exposure.

• Form Variation in Stability: Powder tends to be more stable than pre-mixed solutions or suspensions. Capsules are also durable but should be protected from heat.

• Storage with Desiccant: For added protection against moisture, including a desiccant packet in your storage container is beneficial.

At RC Plug, customer satisfaction and trust are our top priorities. If your NSI-189 package is lost in transit, arrives damaged, or fails to meet our quality standards, we offer a 30-day refund or replacement policy to protect your research investment.

• 30-Day Refund or Replacement Guarantee: If your order fails to arrive within the expected timeframe or is confirmed lost by the carrier, we’ll send a replacement or refund your payment.

• Zero-Risk for Legitimate Claims: There are no hidden fees or restocking charges when you request a refund due to non-delivery or product damage.

• Photo Evidence for Damage: In the event of damaged goods, we may ask for a photo of the packaging and contents to speed up processing and improve future shipping practices.

• Immediate Support Response: Our customer support team typically responds within 12–24 hours to resolve lost or damaged order claims.

• Discreet Replacements: If a replacement is needed, it will be repackaged discreetly and shipped on an expedited basis, often within the same business day.

• Trusted Couriers with Tracking: All shipments include tracking numbers and insurance, which reduces the likelihood of loss and makes verification of delivery easier.

Yes, at RC Plug, we provide custom pricing and volume discounts for bulk orders of NSI-189 to support research institutions, laboratories, and regular buyers. Bulk ordering not only ensures cost-efficiency but also allows for long-term project planning without supply interruptions.

• Tiered Pricing Available: The more you purchase, the greater the discount. Bulk pricing tiers are available starting from as low as 5 grams and above.

• Institutional & Academic Support: We work directly with university labs and R&D departments to accommodate grant-funded or large-scale research programs with special rates.

• Repeat Buyer Incentives: Existing customers who order regularly may qualify for exclusive loyalty discounts and expedited handling.

• Custom Batch Quantities: We support orders ranging from small-scale studies to multi-hundred-gram quantities, all with verified purity.

• Direct Contact for Quotes: For bulk orders, our support team will provide a tailored quote within 24 hours based on quantity, shipping destination, and timeline.

• Combined Shipping Options: Ordering in bulk can reduce per-unit shipping costs by combining items into a single secure shipment.

• Dedicated Account Manager: Larger clients may be assigned a dedicated manager to streamline future reorders and documentation.